Auxiliary Prize/Multiplier Reel
Special Reels
Auxiliary Prize/Multiplier Reel is a unique vertical reel that spins independently alongside the main game grid, applying either win multipliers or fixed jackpot values to any wins on the main reels.
Cascading Reels
Newly added symbols
Cascading Reels is a system where winning symbols disappear from the screen, and the symbols above them fall down like a cascade to fill the empty spaces, continuously creating new winning opportunities. The core of this feature is to trigger a chain reaction that allows for multiple wins from a single spin.
Remarks
This feature is used in many slots and is called by various names. Besides Cascading Reels, there are several other expressions as follows.
- Collapsing Reels
- Tumbling Reels
- Avalanche
While there may be subtle differences in bonus elements, the basic operating principle can be considered the same for all.
More Features in This Family
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Auxiliary Triggered Reel
Special Reels
An additional reel positioned above the main game grid that spins independently and awards multipliers or a collector symbol when a full stack of identical symbols appears on a corresponding main reel.
Base Game Special Reels
Special Reels
This feature offers an alternative base game experience with a modified reel set, where only high-value and special symbols appear, significantly boosting win opportunities.
Block Set Upgrade
Special Reels
If all block symbols are destroyed in a cascade, then for the rest of the game round, only Multiplier, Bonus, and Gem blocks will appear in the blocks area.
Blocker Removal
Special Reels
A feature that expands the game board and increases the ways to win by removing 'blocker symbols' that obstruct parts of the reels.
Colossal Reels
Special Reels
A feature where multiple reels merge to spin and stop together as one giant symbol.
Connecting Symbol Fill
Special Reels
When a selected expanding symbol appears on the same row on two different reels, all symbols on that row between those two reels transform into the selected expanding symbol.
Dead Reel
Special Reels
A feature where, as an outcome of a special event (e.g., a "Mystery Duel"), an entire reel becomes inactive and empty ("Dead"), ceasing to participate in any further winning combinations or refills for the remainder of the current spin.
Double Game Field
Special Reels
A bonus game mechanic that adds a second identical game field (board) to the main board, doubling the potential for symbol collection and allowing bonus features to trigger independently on each field.
Eclipse Feature Trigger
Special Reels
The Eclipse Feature Trigger is a bonus activation system that requires specific 'Moon' and 'Sun' symbols to align horizontally on the same row, with the intermediate symbol determining the type of bonus awarded.
Expanding Collector Reel
Special Reels
This feature transforms a single 'Collect' symbol into a full-reel collector upon landing, which then sweeps all visible cash prize symbols from other reels.
Feature Reel
Special Reels
A 'trigger reel' that spins horizontally, separate from the main grid (usually at the top), activating a special feature when its symbol matches the vertical reel below it.
Full Paying Symbol Cascade
Special Reels
If all paying symbols are destroyed in a single cascade, the following cascade will consist entirely of a single kind of paying symbol.
Gem Block Destruction & Fill
Special Reels
Special Gem Blocks (e.g., Red, Blue, Green) destroy all symbols of their matching color-class on the reels, and then ensure only symbols of that same kind drop in the subsequent cascade.
Grid Reset
Special Reels
A feature that removes all symbols from the grid and replaces them with a completely new set of symbols.
Horizontal Multiplier Reel
Special Reels
Horizontal Multiplier Reel is an innovative reel mechanic where a dedicated horizontal reel, positioned above the main game grid, spins to reveal multiplier values that directly enhance all winning combinations achieved on the main reels in that spin.
Inverted Cascade
Special Reels
A feature where winning symbols are locked in place (Sticky), while only non-winning symbols disappear and are replaced by new ones.
Mega Reel
Special Reels
A feature where multiple reels merge to spin and stop together as one giant symbol.
Nudge and Reveal
Special Reels
A feature where a mystery stack nudges one position per spin, revealing its identity to provide continuous opportunities.
Path Creator
Special Reels
A feature that fills empty spaces on the reels to create a 'path' for symbols to move or connect.
Reel Expansion
Special Reels
A feature where the physical size of the game grid (reels or rows) actually gets bigger, usually during a bonus round.
Reel Nudge for Matching Symbols
Special Reels
A mechanic where specific reels automatically nudge until they display matching symbols, often to complete a winning combination or trigger a jackpot.
Reel Riser Mechanic
Special Reels
A bonus game mechanic where new symbols ascend to starting positions and existing symbols are pushed higher on the reels.
Reel Split
Special Reels
A feature that splits all symbols on a specific reel in two, doubling the number of Ways to Win.
Selectable Reel/Payline Modes
Special Reels
A feature that allows the player to choose from multiple game modes, each with a different number of active reels and paylines, directly altering the base game configuration and bet amount.
Sequential Wild Reels
Special Reels
A feature where a new reel turns into a 'Wild Reel' in a set sequence with each spin.
Splitting Colossal Symbol
Special Reels
A feature where a single giant symbol 'splits' into smaller-sized symbols over multiple stages.
Stackways Engine
Special Reels
The Stackways™ engine is a unique reel mechanic where each reel can randomly display a variable number of symbols, typically ranging from 2 to 10 in the base game, which dynamically changes the number of ways to win, and can expand further in bonus rounds.
Stepper Feature
Special Reels
A unique mechanic where uncollected bonus or jackpot symbols nudge down one position on the subsequent spin, offering an additional chance to trigger a bonus.
Super Cascade Reels
Special Reels
An enhanced version of cascading reels where a win removes all symbols of the 'same kind' from the entire screen.
Symbol Attraction
Special Reels
A feature where a special 'magnet' or 'collect' symbol appears and pulls other specific symbols on the reels toward itself.
Symbol Removal
Special Reels
A feature that temporarily removes specific symbols (usually low-value ones) from the reels, allowing winning combinations to be formed only with higher-value symbols.
Symbol-to-Mini-Slot Transformation
Special Reels
This feature transforms a regular symbol on the main reels into a fully functional single-reel mini-slot machine, which then spins to award unique prizes like multipliers, free spins, or bonus game triggers.
Synchronized Reels
Special Reels
A mechanic where two or more separate reels are linked to land with the exact same symbols.
Fixed Non-Rectangular Grid
Special Reels
This feature establishes a fixed, non-rectangular active playing grid where only specific symbol positions within a larger visual layout are active for symbol landing and win evaluation, creating a unique and static reel shape.
Reel-Specific Symbol Selector
Special Reels
Each reel has an independent symbol selector above it; if the selected symbol lands on the reel, all symbols on that reel transform to match the selected symbol.
Electric Reels
Special Reels
Electric Reels introduce a dynamic reel state that causes landing wilds to expand fully and double their multiplier, significantly boosting win potential.
Independent Position Reels
Special Reels
This feature redefines the game grid, transforming each individual position into its own independent spinning reel, creating unique winning dynamics.
Designated Feature Reels
Special Reels
Designated Feature Reels are specific reels within the main game grid that are pre-assigned to host unique dormant features, which activate under specific trigger conditions involving other symbols and can be progressively upgraded.
Vertical Reel Shift Respin
Special Reels
During a free spins mode, the entire reel grid dynamically shifts down one row after each win, revealing a new row of symbols at the top and triggering a respin.
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